Running back Phillip Tanner (35) tries to push off cornerback Orlando Scandrick (32) during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Running back Phillip Tanner (35) tries to push off cornerback Orlando Scandrick (32) during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, ... more

Receiver Eric Rogers (14) hauls in a pass in the end zone against safety Eric Frampton (41) during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Receiver Eric Rogers (14) hauls in a pass in the end zone against safety Eric Frampton (41) during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in ... more

Photo: Kin Man Hui, San Antonio Express-News

Receiver Eric Rogers (14) hauls in a pass in the end zone against... Photo-4974190.67180 - San Antonio Express-News

Tight end Jason Witten (82) runs toward the end zone during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Tight end Jason Witten (82) runs toward the end zone during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio ... more

Quarterback Tony Romo (09) gets congratulated by receiver Dez Bryant (88) after a successful play during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Quarterback Tony Romo (09) gets congratulated by receiver Dez Bryant (88) after a successful play during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 ... more

Receiver Tim Benford (16) misses a catch as safety J.J. Wilcox (27) closes in during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Receiver Tim Benford (16) misses a catch as safety J.J. Wilcox (27) closes in during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. ... more

Tight end Andre Smith (87) hustles to a clearing during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Tight end Andre Smith (87) hustles to a clearing during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio ... more

Photo: Kin Man Hui, San Antonio Express-News

Tight end Andre Smith (87) hustles to a clearing during practice... Photo-4974196.67180 - San Antonio Express-News

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Running back DeMarco Murray (29) playfully attempts to reclaim the ball from safety Will Allen (26) and cornerback Morris Claiborne during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Running back DeMarco Murray (29) playfully attempts to reclaim the ball from safety Will Allen (26) and cornerback Morris Claiborne during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys ... more

Receiver Jared Green (85) runs through a clearing during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Receiver Jared Green (85) runs through a clearing during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio ... more

Quarterback Tony Romo looks to hand off the ball during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Quarterback Tony Romo looks to hand off the ball during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio ... more

Photo: Kin Man Hui, San Antonio Express-News

Quarterback Tony Romo looks to hand off the ball during practice... Photo-4974199.67180 - San Antonio Express-News

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Taboola Gallery Frame Item-85307.67180 - San Antonio Express-News

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Receiver Terrance Williams (83) runs out of bounds against cornerback Morris Claiborne (24) during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Receiver Terrance Williams (83) runs out of bounds against cornerback Morris Claiborne (24) during practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in ... more

Injured defensive end Jay Ratliff joins his teammates on the field before practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / San Antonio Express-News) less

Injured defensive end Jay Ratliff joins his teammates on the field before practice and the Blue-White scrimmage at the 2013 Dallas Cowboys training camp on Sunday, July 28, 2013 in Oxnard, Calif. (Kin Man Hui / ... more

Photo: Kin Man Hui, San Antonio Express-News

Injured defensive end Jay Ratliff joins his teammates on the field... Photo-4974202.67180 - San Antonio Express-News